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Issue Oil & Gas Science and Technology - Rev. IFP Energies nouvelles
Volume 62, Number 4, July-August 2007
IFP International Conference
New Trends on Engine Control, Simulation and Modelling
Page(s) 523 - 538
DOI 10.2516/ogst:2007042
Published online 06 December 2007

Oil & Gas Science and Technology - Rev. IFP, Vol. 62 (2007), No. 4, pp. 523-538
DOI: 10.2516/ogst:2007042

Modeling and Control of Turbocharged SI and DI Engines

Modélisation et contrôle de moteurs suralimentés à allumage commandé et à injection directe


L. Eriksson

Vehicular Systems, Dept. of Electrical Engineering Linköping University, SE-58183 Linköping - Sweden

larer@isy.liu.se

(Published online: 6 December 2007)

Abstract
A component based modeling methodology for turbocharged engines is described and applied. Several component models are compiled and reviewed. In addition new models are developed for the compressor efficiency, compressor flow, and turbine flow. Two application examples are finally given where the modeling methodology and the component models have been used. The applications are, firstly, observer design and air/fuel ratio control of SI engines and, secondly, control design of DI engines with VGT and EGR.


Résumé
Une méthodologie pour la modélisation par composants de moteurs suralimentés est décrite et appliquée. Plusieursmodèles à composants sont considérés et évalués. De plus, de nouveauxmodèles sont élaborés incluant l'e.cacité du compresseur, le flux dans le compresseur, et le flux dans la turbine. Enfin, deux exemples d'application qui utilisent cette méthodologie et ces modèles de composants sont présentés. Les applications sont, d'une part, la conception d'observateurs et le contrôle du rapport air/carburant de moteurs à allumage commandé, et d'autre part la conception du contrôle de moteurs à injection directe incluant un turbocompresseur à géométrie variable et le recyclage de gaz d'échappement.



© IFP 2007


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